When is the last frost in Gulfport, MS?

The average last spring frost (50% probability of 32°F) in Gulfport is around February 18, based on NOAA/NCEI 1991–2020 normals at the Gulfport Naval Ctr, MS station (1.6 mi away). Half of years it falls outside that date, so wait 1–2 weeks past it before setting out frost-tender plants.

When is the first fall frost in Gulfport?

The average first fall frost in Gulfport, MS is around December 14, giving roughly a 300-day frost-free growing season.

What planting zone is Gulfport, MS?

Gulfport is in USDA plant hardiness zone 9a (average annual extreme minimum temperature 20 to 25°F), from the 2023 USDA Plant Hardiness Zone Map.

What is the weather like in Gulfport?

In Gulfport, MS the warmest month is July (avg high 90.2°F) and the coldest is January (avg low 43.7°F). It averages about 68.2″ of precipitation a year and 0.2″ of snow.

Home › Mississippi › Gulfport

Gulfport, MS Planting Calendar & Frost Dates

USDA hardiness zone 9a · ZIP 39501 · elevation 11′ · NOAA & USDA data

Gulfport is in USDA hardiness zone 9a (winters can dip to 20 to 25°F), with a growing season of about 300 days between the average last spring frost (February 18) and first fall frost (December 14). The warmest month is July (avg high 90.2°F); the coldest is January (avg low 43.7°F). It averages 68.2″ of precipitation a year and 0.2″ of snow, mostly mid-winter. Start cool-season crops several weeks before the last frost; wait until after it for tomatoes, peppers and other tender crops.

Hardiness zone

min temp 20 to 25°F

Last spring frost

February 18

avg (50% prob, 32°F)

First fall frost

December 14

avg (50% prob, 32°F)

Growing season

300 days

frost-free window

Warmest month

July

avg high 90.2°F

Month-by-month typical weather in Gulfport

Average conditions from the NOAA/NCEI 1991–2020 U.S. Climate Normals at Gulfport Naval Ctr, MS (1.6 mi away). Temperatures °F, precipitation & snow in inches.

Month	Avg high	Avg low	Mean	Precip (in)	Snow (in)
January	60.9	43.7	52.3	5.8	0
February	64.4	46.6	55.5	4.9	0
March	69.8	52.8	61.3	5.5	0.1
April	76	59.7	67.8	5.6	0
May	82.7	67.4	75	5.3	0
June	87.3	72.9	80.1	7.4	0
July	90.2	75.1	82.6	8	0
August	89.9	75	82.5	7	0
September	86.8	70.8	78.8	5.9	0
October	79.3	60.8	70.1	3.5	0
November	69.7	50.6	60.1	4.4	0
December	63	46	54.5	5	0.1

What to plant when in Gulfport

Crop	Season	What to do & when
Tomatoes	warm	Start seeds indoors: January 7 · Transplant out: February 25
Peppers	warm	Start seeds indoors: December 24 · Transplant out: March 4
Cucumbers	warm	Direct sow: February 25
Zucchini / squash	warm	Direct sow: February 25
Bush beans	warm	Direct sow: February 25
Sweet corn	warm	Direct sow: February 25
Basil	warm	Transplant out: February 25
Peas	cool	Sow (spring): January 14 · Sow (fall): October 19
Spinach	cool	Sow (spring): January 7 · Sow (fall): October 19
Lettuce	cool	Sow (spring): January 21 · Sow (fall): October 19
Kale	cool	Transplant (spring): January 28 · Sow (fall): October 5
Broccoli	cool	Transplant (spring): February 4
Carrots	cool	Sow (spring): January 28 · Sow (fall): October 5
Onions	cool	Transplant (spring): January 21
Potatoes	cool	Plant seed potatoes: February 4
Radishes	cool	Sow (spring): January 21 · Sow (fall): November 2

Dates are computed from Gulfport's average frost dates using standard cool-/warm-season timing. They're a starting point — a cold spring, a warm microclimate, or a fast-maturing variety can shift them by a week or two.

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Gear that helps you plant on time

Some links below are Amazon affiliate links (tag theboringthin-20). If you buy through them we may earn a small commission at no extra cost to you — it keeps this almanac free. We only list generic, genuinely-useful categories.

Soil thermometer →Know when the ground is warm enough to sow — the honest signal, not the calendar.Seed-starting trays + dome →Start tomatoes & peppers indoors on the schedule below.Seedling heat mat →Warms the soil for faster, more even germination indoors.Floating row cover / frost cloth →Buys you 4–8°F to beat an early or late frost.Raised garden bed kit →Warms and drains faster in spring than in-ground soil.Garden gloves →Basic kit for transplant day.

Nearby cities in Mississippi

Biloxi, MS Hattiesburg, MS Meridian, MS Jackson, MS Southaven, MS

Sources & method. Hardiness zone: 2023 USDA Plant Hardiness Zone Map (PRISM Climate Group, Oregon State University). Frost dates & growing season: NOAA/NCEI 1991–2020 U.S. Climate Normals, nearest station with published freeze normals — Gulfport Naval Ctr, MS, 1.6 mi (confidence: high). Monthly weather normals: Gulfport Naval Ctr, MS, 1.6 mi (confidence: high). ZIP centroid from U.S. Census 2023 ZCTA data. Frost dates are the 50%-probability date — half of years frost occurs outside the stated date. Nothing here is invented; where the nearest station is far, we say so. Last updated 2026-07-22.